118878123 has 16 divisors (see below), whose sum is σ = 195082496. Its totient is φ = 62704800.

The previous prime is 118878121. The next prime is 118878131. The reversal of 118878123 is 321878811.

It is not a de Polignac number, because 118878123 - 2¹ = 118878121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (118878121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217453 + ... + 217998.

It is an arithmetic number, because the mean of its divisors is an integer number (12192656).

Almost surely, 2^118878123 is an apocalyptic number.

118878123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

118878123 is a deficient number, since it is larger than the sum of its proper divisors (76204373).

118878123 is a wasteful number, since it uses less digits than its factorization.

118878123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435474.

The product of its digits is 21504, while the sum is 39.

The square root of 118878123 is about 10903.1244604471. The cubic root of 118878123 is about 491.7004960476.

The spelling of 118878123 in words is "one hundred eighteen million, eight hundred seventy-eight thousand, one hundred twenty-three".